مشکل در implement کد

[salehjg]

با عرض سلام

دوستان میشه کمک کنید تا مشکل کد رو پیدا کنم؟

وقتی implement design رو می زدم، میگفت که متغییر ها مقدار اولیه ندارن، بعد ار اصلاح ، این warning ها رو میده(ise 11)

WARNING:Xst:1293 - FF/Latch <is_end_FSM_FFd1> has a constant value of 0 in block <main>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:2677 - Node <temp_addr_SRAM_10> of sequential type is unconnected in block <main>.
WARNING:Xst:2677 - Node <temp_addr_SRAM_9> of sequential type is unconnected in block <main>.
WARNING:Xst:2677 - Node <temp_addr_SRAM_8> of sequential type is unconnected in block <main>.
WARNING:Xst:2677 - Node <temp_addr_SRAM_7> of sequential type is unconnected in block <main>.
WARNING:Xst:2677 - Node <temp_addr_SRAM_6> of sequential type is unconnected in block <main>.
WARNING:Xst:2677 - Node <temp_addr_SRAM_5> of sequential type is unconnected in block <main>.
WARNING:Xst:2677 - Node <temp_addr_SRAM_4> of sequential type is unconnected in block <main>.
WARNING:Xst:2677 - Node <temp_addr_SRAM_3> of sequential type is unconnected in block <main>.
WARNING:Xst:2677 - Node <temp_addr_SRAM_2> of sequential type is unconnected in block <main>.
WARNING:Xst:2677 - Node <temp_addr_SRAM_1> of sequential type is unconnected in block <main>.
WARNING:Xst:2677 - Node <temp_addr_SRAM_0> of sequential type is unconnected in block <main>.
WARNING:Xst:1293 - FF/Latch <is_end_FSM_FFd2> has a constant value of 0 in block <main>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1710 - FF/Latch <A_0> (without init value) has a constant value of 0 in block <main>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1710 - FF/Latch <A_1> (without init value) has a constant value of 0 in block <main>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1710 - FF/Latch <A_2> (without init value) has a constant value of 0 in block <main>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1710 - FF/Latch <A_3> (without init value) has a constant value of 0 in block <main>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1710 - FF/Latch <A_4> (without init value) has a constant value of 0 in block <main>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1710 - FF/Latch <A_5> (without init value) has a constant value of 0 in block <main>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1710 - FF/Latch <A_6> (without init value) has a constant value of 0 in block <main>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1710 - FF/Latch <A_7> (without init value) has a constant value of 0 in block <main>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1710 - FF/Latch <A_8> (without init value) has a constant value of 0 in block <main>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1710 - FF/Latch <A_9> (without init value) has a constant value of 0 in block <main>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1710 - FF/Latch <A_10> (without init value) has a constant value of 0 in block <main>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1710 - FF/Latch <LED> (without init value) has a constant value of 0 in block <main>. This FF/Latch will be trimmed during the optimization process.

در حالی که هیج error ای نمیاد.


این هم کد های من: ( http://uppp.ir/new_v/do.php?filename=13432200371.zip )

----------------------------------------------------------------------------------
-- Company: 
-- Engineer: 
-- 
-- Create Date:  00:00:48 07/24/2012 
-- Design Name: 
-- Module Name:  main - Behavioral 
-- Project Name: 
-- Target Devices: 
-- Tool versions: 
-- Description: 
--
-- Dependencies: 
--
-- Revision: 
-- Revision 0.01 - File Created
-- Additional Comments: 
--
----------------------------------------------------------------------------------
library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
use IEEE.STD_LOGIC_ARITH.ALL;
use IEEE.STD_LOGIC_UNSIGNED.ALL;

---- Uncomment the following library declaration if instantiating
---- any Xilinx primitives in this code.
--library UNISIM;
--use UNISIM.VComponents.all;

entity main is
   Port (
			 A : out STD_LOGIC_VECTOR (10 downto 0);
      D : inout STD_LOGIC_VECTOR (3 downto 0);
			 clk : in STD_LOGIC;
      RAS : out STD_LOGIC;
      CAS : out STD_LOGIC;
      W : out STD_LOGIC;
      OE : out STD_LOGIC;
      LED : out STD_LOGIC;
			 reset : in STD_LOGIC);
end main;

architecture Behavioral of main is
signal count : 	std_logic_vector(10 downto 0);
signal clk_SRAM: 		std_logic;

begin


process(clk)
begin
  	if clk'event and clk='1' then
		 count<=count+'1'; 
	end if;
end process;

clk_SRAM<=count(10);

process(clk_SRAM, reset)

	variable temp_addr_SRAM: std_logic_vector(10 downto 0):="00000000000";	-- µطض·±نء؟
	variable data_in:		std_logic_vector(3 downto 0):="0000";	  	-- ت‎¾ف±نء؟
	variable state:	integer range 0 to 6 :=0;				-- ×´ج¬±نء؟
	variable is_end:	integer range 0 to 2 :=0;				  		-- ذ´ت‎¾ف½لتّ±êض¾
begin

	if clk_SRAM'event and clk_SRAM='1' then

		if reset='1' then	-- ¸´خ»
			is_end:=0;	-- ذ´½لتّ±êذ¾³ُت¼»¯
			temp_addr_SRAM:=(others=>'0');
			a<= (others=>'0');
			LED<='0';
			w<='1';
			oe<='1';
			ras<='1';
			cas<='1';
			is_end :=0;
			state:=0;		-- ×´ج¬±نء؟³ُت¼»¯
		else
			if is_end=0 then	-- ذ´ت‎¾فأ»سذ½لتّ
				case state is
					when 0 =>
						temp_addr_SRAM:=(others=>'0');	-- µطض·³ُت¼»¯

					when 1 =>
						cas<='1';
						ras <='1';
						a<=temp_addr_SRAM;
						state:=2;
					when 2 =>
						ras<='0';
						oe <='1';
						w <='0';
						state:=3;			 -- بôFIFO؟ص£¬بشخھ×´ج¬0£¬µب´‎
							
					when 3 =>
						a<="00000000000";
						d<="1001";
						cas<='0';
						state:=4;
					when 4 => 
						cas<='1';
						ras<='1';
						state:=5;				   -- ×ھµ½×´ج¬3
					when 5 => 
						ras<='0';	 		
						state:=6;		  			-- ×ھµ½×´ج¬4
					when 6 => 
					
						temp_addr_SRAM:=temp_addr_SRAM+1; 	-- µطض·±نء؟¼س1
						state:=1;						-- ×ھµ½×´ج¬0
						if temp_addr_SRAM="00000000100" then	-- زرذ´آْ
						 is_end:=1;					-- ذ´½لتّ±êض¾ضأخ»
						 led<='0';					-- LED °µ
						 state:=0;
						end if;

				end case;
			elsif is_end = 1 then
				case state is
					when 0 =>
						temp_addr_SRAM:=(others=>'0');	-- µطض·³ُت¼»¯

					when 1 =>
						cas<='1';
						ras <='1';
						a<=temp_addr_SRAM;
						state:=2;
					when 2 =>
						ras<='0';
						oe <='0';
						w <='1';
						state:=3;			 -- بôFIFO؟ص£¬بشخھ×´ج¬0£¬µب´‎
							
					when 3 =>
						a<="00000000000";
						
						cas<='0';
						state:=4;
					when 4 => 
						cas<='1';
						ras<='1';
						data_in:= d;
						state:=5;				   -- ×ھµ½×´ج¬3
					when 5 => 
						ras<='0';	 		
						state:=6;		  			-- ×ھµ½×´ج¬4
					when 6 => 
					
						temp_addr_SRAM:=temp_addr_SRAM+1; 	-- µطض·±نء؟¼س1
						state:=1;		 				-- ×ھµ½×´ج¬0
						if temp_addr_SRAM="00000000100" then	-- زرذ´آْ
						 is_end:=2;					-- ذ´½لتّ±êض¾ضأخ»
						 led<='1';					-- LED °µ
						 
						end if;

				end case;
			end if;

		end if;
	end if;

end process;


end Behavioral;

:rolleyes:

[t_heidari_elc]

پاسخ : مشکل در implement کد

سلام .این که چرا warning "
WARNING:Xst:2677 - Node <temp_addr_SRAM_1> of sequential type is unconnected in block <main>.
را میده نمی دونم چون این سیگنال نیست و variable است و نباید به بلوک متصل باشد.
هنگامی که یک یا چند بیت از سیگنال در تمام طول پروسه دارای مقدار ثابتی باشد warning ff/latch را می دهد که این latch تولید شده مهم نیست

[salehjg]

پاسخ : مشکل در implement کد

آخه مشکلی هست.
در زیر، سورس کد اصلی رو گذاشتم(از اینترنت گرفته بودم) . این سورس بدون هیچ مشکلی implement میشه.
من فقط کمی همون سورس رو گسترش دادم.
الان هم نمی دونم چرا هنگام implement ، اخطار میده.
http://uppp.ir/new_v/do.php?filename=13433191831.zip



تشکر از پاسختون/

[salehjg]

پاسخ : مشکل در implement کد

پیداشش کردممم

seda جان تشکر
" هنگامی که یک یا چند بیت از سیگنال در تمام طول پروسه دارای مقدار ثابتی باشد " : دقیقا مشکل همین بود.

state:=1 جا افتاده بود.